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https://github.com/sbt/sbt.git
synced 2026-10-07 18:43:31 +02:00
Mark Harrah
5ff33fad3e
Problems:
1. Without a message, users don't find 'last'
2. Showing a message for every error clutters output.
This tries to address these issues by:
1. Only showing the message when other feedback has not been provided and
'last' would not usually be helpful. This will require ongoing tweaking.
For now, all commands except 'compile' display the message. 'update' could
omit the message as well, but perhaps knowing about 'last' might be
useful there.
2. Including the exact command to show the output:
last test:compile
and not just
last <task>
3. Highlighting the command in blue for visibility as an experiment.
Review by @ijuma and @retronym, please.
26 lines
824 B
Scala
26 lines
824 B
Scala
package sbt
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import java.lang.reflect.InvocationTargetException
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import scala.annotation.tailrec
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private[sbt] sealed abstract class ExceptionCategory {
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def isFull: Boolean = false
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}
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private[sbt] object ExceptionCategory {
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@tailrec def apply(t: Throwable): ExceptionCategory = t match {
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case _: AlreadyHandledException | _: UnprintableException => AlreadyHandled
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case ite: InvocationTargetException =>
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val cause = ite.getCause
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if(cause == null || cause == ite) new Full(ite) else apply(cause)
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case _: MessageOnlyException => new MessageOnly(t.toString)
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case _ => new Full(t)
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}
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object AlreadyHandled extends ExceptionCategory
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final class MessageOnly(val message: String) extends ExceptionCategory
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final class Full(val exception: Throwable) extends ExceptionCategory {
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override def isFull = true
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}
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}
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